A legislative committee consists of 7 democrats and 8 republicans. A delegation of 3 is to be selected to visit a small island republic. Complete parts (a) through (d) below. (a) how many different delegations are possible? -the 3 delegates can be selected __ different ways (b) how many delegations would have all democrats?  - the 3 delegates can be selected __ different ways if all 3 are democrats. (c) how many delegations would have 2 democrats and 1 republican? -The 3 delegates can be selected __ different ways if 2 are democrats and 1 is a republican

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A legislative committee consists of 7 democrats and 8 republicans. A delegation of 3 is to be selected to visit a small island republic. Complete parts (a) through (d) below.

(a) how many different delegations are possible?

-the 3 delegates can be selected __ different ways

(b) how many delegations would have all democrats? 
- the 3 delegates can be selected __ different ways if all 3 are democrats.

(c) how many delegations would have 2 democrats and 1 republican?

-The 3 delegates can be selected __ different ways if 2 are democrats and 1 is a republican

(d) how many delegations would include at least 1 republican?

the 3 delegates can be selected __ different ways if at least 1 is a republican.

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